Fix #6645 spatial Geometry type inference on schema startup

[michaelstaib]

• add a regression test that reproduces schema initialization with Geometry + spatial projection/filtering setup
• bind NetTopologySuite.Geometries.Geometry explicitly to GeometryType in AddSpatialTypes()
• prevent runtime type discovery from inferring Geometry as an object type and traversing invalid pointer members (System.Byte*)

Fixes #6645

[github-actions]

Fusion Gateway Performance Results

Simple Composite Query

	Req/s	Err%
Constant 2 (50 VUs)	3383.06	0.00%
Ramping 2 (0-500-0 VUs)	3853.96	0.00%

Response Times

	Min	Med	Avg	P90	P95	Max
Constant 2	1.02ms	12.10ms	14.51ms	23.02ms	32.04ms	254.69ms
Ramping 2	1.24ms	52.05ms	56.93ms	98.77ms	142.62ms	293.85ms

---

Deep Recursion Query

	Req/s	Err%
Constant 2 (50 VUs)	773.65	0.00%
Ramping 2 (0-500-0 VUs)	931.60	0.00%

Response Times

	Min	Med	Avg	P90	P95	Max
Constant 2	12.63ms	55.94ms	62.36ms	81.12ms	99.67ms	797.54ms
Ramping 2	2.87ms	202.23ms	221.77ms	453.88ms	517.78ms	1008.49ms

---

Variable Batching Throughput

	Req/s	Err%
Constant 2 (50 VUs)	5575.63	0.00%
Ramping 2 (0-500-0 VUs)	5211.77	0.00%

Response Times

	Min	Med	Avg	P90	P95	Max
Constant 2	0.16ms	8.38ms	8.86ms	14.79ms	17.89ms	53.27ms
Ramping 2	0.19ms	39.86ms	44.05ms	81.53ms	106.04ms	225.23ms

---

Runner 2 = benchmarking-2

Run 22490009747 • Commit 203b70b • Fri, 27 Feb 2026 14:33:32 GMT

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 0.00%. Comparing base (84e5c32) to head (834c268).
⚠️ Report is 54 commits behind head on main.

Additional details and impacted files

@@     Coverage Diff      @@
##   main   #9253   +/-   ##
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